Randomized controlled trials support the antidepressant efficacy of transcranial magnetic stimulation (TMS); however, there is individual variability in the magnitude of response. Examination of response predictors has been hampered by methodological limitations such as small sample sizes and single-site study designs. Data from a multisite sham-controlled trial of the antidepressant efficacy of TMS provided an opportunity to examine predictors of acute outcome. An open-label extension for patients who failed to improve provided the opportunity for confirmatory analysis. Treatment was administered to the left dorsolateral prefrontal cortex at 10 pulses per second, 120% of motor threshold, for a total of 3000 pulses per day. Change on the Montgomery-Asberg Depression Rating Scale after 4 weeks was the primary efficacy outcome. A total of 301 patients with nonpsychotic unipolar major depression at 23 centers were randomized to active or sham TMS. Univariate predictor analyses showed that the degree of prior treatment resistance in the current episode was a predictor of positive treatment outcome in both the controlled study and the open-label extension trial. In the randomized trial, shorter duration of current episode was also associated with a better outcome. In the open-label extension study, absence of anxiety disorder comorbidity was associated with an improved outcome, but duration of current episode was not. The number of prior treatment failures was the strongest predictor for positive response to acute treatment with TMS. Shorter duration of current illness and lack of anxiety comorbidity may also confer an increased likelihood of good antidepressant response to TMS.

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This retrospective study characterizes the suicidal behavior in 119 patients with Axis I adjustment disorders as assessed by psychiatrists at the University of Virginia Hospital. Results indicated that 72 patients (60.5%) had documented suicide attempts in the past, 96% had been suicidal during their admission to the hospital, and 50% had attempted suicide before their hospitalization. The most commonly used method of suicide attempts was overdosing. Of the sample group with suicide attempts in the past, 67% had Axis II diagnoses of borderline personality disorder and antisocial personality disorder. Adjustment disorder diagnosis in patients with the suicide attempts was associated with a high level of suicidality at admission, involuntary hospitalization and substance-abuse disorders. Axis II diagnoses in patients with adjustment disorders constituted risk factors for further suicidal behavior. Additional future prospective studies with reliability checks on diagnosis of adjustment disorders and suicidal behavior are needed.

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